I see the following exception when one of our queries was modified. When does this occur and what is the workaround for it?

AxisFault

faultCode: {urn:fault.enterprise.soap.sforce.com}INVALID_QUERY_LOCATOR

faultSubcode:

faultString: INVALID_QUERY_LOCATOR: invalid query locator

faultActor:

faultNode:

faultDetail:

{urn:fault.enterprise.soap.sforce.com}fault:<ns1:exceptionCode>INVALID_QUERY_LOCATOR</ns1:exceptionCode><ns1:exceptionMessage>invalid query locator</ns1:exceptionMessage>

INVALID_QUERY_LOCATOR: invalid query locator

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:274)

at java.lang.Class.newInstance0(Class.java:308)

at java.lang.Class.newInstance(Class.java:261)

at org.apache.axis.encoding.ser.BeanDeserializer.<init>(BeanDeserializer.java:104)

at org.apache.axis.encoding.ser.BeanDeserializer.<init>(BeanDeserializer.java:90)

at com.sforce.soap.enterprise.fault.InvalidQueryLocatorFault.getDeserializer(InvalidQueryLocatorFault.java:84)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:324)

at org.apache.axis.encoding.ser.BaseDeserializerFactory.getSpecialized(BaseDeserializerFactory.java:154)

at org.apache.axis.encoding.ser.BaseDeserializerFactory.getDeserializerAs(BaseDeserializerFactory.java:84)

at org.apache.axis.encoding.DeserializationContext.getDeserializer(DeserializationContext.java:464)

at org.apache.axis.encoding.DeserializationContext.getDeserializerForType(DeserializationContext.java:547)

at org.apache.axis.message.SOAPFaultDetailsBuilder.onStartChild(SOAPFaultDetailsBuilder.java:157)

at org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:1035)

at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1672)

at org.apache.crimson.parser.Parser2.content(Parser2.java:1963)

at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1691)

at org.apache.crimson.parser.Parser2.content(Parser2.java:1963)

at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1691)

at org.apache.crimson.parser.Parser2.content(Parser2.java:1963)

at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1691)

at org.apache.crimson.parser.Parser2.content(Parser2.java:1963)

at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1691)

at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:667)

at org.apache.crimson.parser.Parser2.parse(Parser2.java:337)

at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:448)

at javax.xml.parsers.SAXParser.parse(SAXParser.java:345)

at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)

at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)

at org.apache.axis.Message.getSOAPEnvelope(Message.java:424)

at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)

at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)

at org.apache.axis.client.Call.invokeEngine(Call.java:2765)

at org.apache.axis.client.Call.invoke(Call.java:2748)

at org.apache.axis.client.Call.invoke(Call.java:2424)

at org.apache.axis.client.Call.invoke(Call.java:2347)

at org.apache.axis.client.Call.invoke(Call.java:1804)

at com.sforce.soap.enterprise.SoapBindingStub.queryMore(SoapBindingStub.java:2237)